HD 144812: a transition-phase massive star in a binary system

Autores
Kourniotis, Michalis; Kraus, Michaela; Arias, María Laura; Cidale, Lydia Sonia
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this Letter, we shed light on the evolutionary phase of HD 144812, a Galactic yellow supergiant showing infrared excess that is typically expected for evolved stars undergoing enhanced mass-loss activity. We present high-resolution spectroscopy of the star in the H- and K- band acquired with the GRating INfrared Spectrometer (IGRINS) and further explore multiband imaging of the wider field of view from the ultraviolet to the radio regime. The IGRINS data reveal several lines from the hydrogen series and iron in a double-peaked emission and we here suggest that HD 144812 is orbited by a disc-hosting companion. Furthermore, we report emission in the CO band heads of the star that is modelled to arise from a circumstellar/binary disc (or ring) of ejected gas. The latter consists of material that is expected to have been dredged up from the core of the star to its surface during a prior phase as a red supergiant (RSG). These findings together suggest that HD 144812 is a rare, post-RSG star in a binary system, encouraging further investigation on the effect that the stellar encounters have on triggering instabilities and driving the evolution of the primary star shortly prior to the supernova event.
Fil: Kourniotis, Michalis. Czech Academy of Sciences; República Checa
Fil: Kraus, Michaela. Czech Academy of Sciences; República Checa
Fil: Arias, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Cidale, Lydia Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Materia
Solar and Stellar Astrophysics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/290759
Acceder
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spelling HD 144812: a transition-phase massive star in a binary systemKourniotis, MichalisKraus, MichaelaArias, María LauraCidale, Lydia SoniaSolar and Stellar Astrophysicshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this Letter, we shed light on the evolutionary phase of HD 144812, a Galactic yellow supergiant showing infrared excess that is typically expected for evolved stars undergoing enhanced mass-loss activity. We present high-resolution spectroscopy of the star in the H- and K- band acquired with the GRating INfrared Spectrometer (IGRINS) and further explore multiband imaging of the wider field of view from the ultraviolet to the radio regime. The IGRINS data reveal several lines from the hydrogen series and iron in a double-peaked emission and we here suggest that HD 144812 is orbited by a disc-hosting companion. Furthermore, we report emission in the CO band heads of the star that is modelled to arise from a circumstellar/binary disc (or ring) of ejected gas. The latter consists of material that is expected to have been dredged up from the core of the star to its surface during a prior phase as a red supergiant (RSG). These findings together suggest that HD 144812 is a rare, post-RSG star in a binary system, encouraging further investigation on the effect that the stellar encounters have on triggering instabilities and driving the evolution of the primary star shortly prior to the supernova event.Fil: Kourniotis, Michalis. Czech Academy of Sciences; República ChecaFil: Kraus, Michaela. Czech Academy of Sciences; República ChecaFil: Arias, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Cidale, Lydia Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaOxford University Press2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/290759Kourniotis, Michalis; Kraus, Michaela; Arias, María Laura; Cidale, Lydia Sonia; HD 144812: a transition-phase massive star in a binary system; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 540; 1; 6-2025; 1-61745-39251745-3933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/540/1/L28/8096646info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slaf028info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T15:12:56Zoai:ri.conicet.gov.ar:11336/290759instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 15:12:57.333CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv HD 144812: a transition-phase massive star in a binary system
title HD 144812: a transition-phase massive star in a binary system
spellingShingle HD 144812: a transition-phase massive star in a binary system
Kourniotis, Michalis
Solar and Stellar Astrophysics
title_short HD 144812: a transition-phase massive star in a binary system
title_full HD 144812: a transition-phase massive star in a binary system
title_fullStr HD 144812: a transition-phase massive star in a binary system
title_full_unstemmed HD 144812: a transition-phase massive star in a binary system
title_sort HD 144812: a transition-phase massive star in a binary system
dc.creator.none.fl_str_mv Kourniotis, Michalis
Kraus, Michaela
Arias, María Laura
Cidale, Lydia Sonia
author Kourniotis, Michalis
author_facet Kourniotis, Michalis
Kraus, Michaela
Arias, María Laura
Cidale, Lydia Sonia
author_role author
author2 Kraus, Michaela
Arias, María Laura
Cidale, Lydia Sonia
author2_role author
author
author
dc.subject.none.fl_str_mv Solar and Stellar Astrophysics
topic Solar and Stellar Astrophysics
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this Letter, we shed light on the evolutionary phase of HD 144812, a Galactic yellow supergiant showing infrared excess that is typically expected for evolved stars undergoing enhanced mass-loss activity. We present high-resolution spectroscopy of the star in the H- and K- band acquired with the GRating INfrared Spectrometer (IGRINS) and further explore multiband imaging of the wider field of view from the ultraviolet to the radio regime. The IGRINS data reveal several lines from the hydrogen series and iron in a double-peaked emission and we here suggest that HD 144812 is orbited by a disc-hosting companion. Furthermore, we report emission in the CO band heads of the star that is modelled to arise from a circumstellar/binary disc (or ring) of ejected gas. The latter consists of material that is expected to have been dredged up from the core of the star to its surface during a prior phase as a red supergiant (RSG). These findings together suggest that HD 144812 is a rare, post-RSG star in a binary system, encouraging further investigation on the effect that the stellar encounters have on triggering instabilities and driving the evolution of the primary star shortly prior to the supernova event.
Fil: Kourniotis, Michalis. Czech Academy of Sciences; República Checa
Fil: Kraus, Michaela. Czech Academy of Sciences; República Checa
Fil: Arias, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Cidale, Lydia Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
description In this Letter, we shed light on the evolutionary phase of HD 144812, a Galactic yellow supergiant showing infrared excess that is typically expected for evolved stars undergoing enhanced mass-loss activity. We present high-resolution spectroscopy of the star in the H- and K- band acquired with the GRating INfrared Spectrometer (IGRINS) and further explore multiband imaging of the wider field of view from the ultraviolet to the radio regime. The IGRINS data reveal several lines from the hydrogen series and iron in a double-peaked emission and we here suggest that HD 144812 is orbited by a disc-hosting companion. Furthermore, we report emission in the CO band heads of the star that is modelled to arise from a circumstellar/binary disc (or ring) of ejected gas. The latter consists of material that is expected to have been dredged up from the core of the star to its surface during a prior phase as a red supergiant (RSG). These findings together suggest that HD 144812 is a rare, post-RSG star in a binary system, encouraging further investigation on the effect that the stellar encounters have on triggering instabilities and driving the evolution of the primary star shortly prior to the supernova event.
publishDate 2025
dc.date.none.fl_str_mv 2025-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/290759
Kourniotis, Michalis; Kraus, Michaela; Arias, María Laura; Cidale, Lydia Sonia; HD 144812: a transition-phase massive star in a binary system; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 540; 1; 6-2025; 1-6
1745-3925
1745-3933
CONICET Digital
CONICET
url http://hdl.handle.net/11336/290759
identifier_str_mv Kourniotis, Michalis; Kraus, Michaela; Arias, María Laura; Cidale, Lydia Sonia; HD 144812: a transition-phase massive star in a binary system; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 540; 1; 6-2025; 1-6
1745-3925
1745-3933
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/540/1/L28/8096646
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slaf028
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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